Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Details)

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Property and Equipment (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment        
Property, plant and equipment, gross   $ 421,057,000 $ 389,458,000  
Less: Accumulated depreciation and property reserves   (242,977,000) (221,497,000)  
Total Property Plant & Equipment, net   178,080,000 167,961,000  
Assets held for sale, excluded from property and equipment, net   900,000    
Gain (Loss) on Disposition of Property Plant Equipment $ 0 (1,399,000) (1,204,000) $ (998,000)
Depreciation expense   31,900,000 23,700,000 $ 13,500,000
Land and improvements        
Property, Plant and Equipment        
Property, plant and equipment, gross   7,597,000 7,649,000  
Buildings        
Property, Plant and Equipment        
Property, plant and equipment, gross   39,715,000 38,933,000  
Equipment        
Property, Plant and Equipment        
Property, plant and equipment, gross   121,738,000 115,261,000  
Computer hardware and software        
Property, Plant and Equipment        
Property, plant and equipment, gross   135,938,000 132,719,000  
Company vehicles        
Property, Plant and Equipment        
Property, plant and equipment, gross   $ 116,069,000 $ 94,896,000